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Vostok, Lake

(Encyclopedia)Vostok, Lake väˈstôk [key], c.3,900 sq mi (10,000 sq km), c.155 mi (250 km) long and 30 mi (50 km) at its greatest width, in East Antartica beneath the remote Vostok research station. One of the la...

Ersch, Johann Samuel

(Encyclopedia)Ersch, Johann Samuel yōˈhän zäˈmo͞oĕl ĕrsh [key], 1766–1828, German encyclopedist, first editor of the great encyclopedia known as Ersch and Gruber's. At his death, 17 volumes had been compl...

Evans, Charles

(Encyclopedia)Evans, Charles, 1850–1935, American librarian and bibliographer, b. Boston. He organized many major American libraries including the Indianapolis public library, the Enoch Pratt Free Library in Balt...

polar bear

(Encyclopedia)polar bear, large white bear, Ursus maritimus, formerly Thalarctos maritimus, of the coasts of arctic North America, Asia, and Europe. Polar bears usually live on drifting pack ice, but sometimes wand...

neutrino astronomy

(Encyclopedia)neutrino astronomy, study of stars by means of their emission of neutrinos, fundamental particles that result from nuclear reactions and are emitted by stars along with light. Approximately 100 billio...

Superior, Lake

(Encyclopedia)Superior, Lake, largest freshwater lake in the world, 31,820 sq mi (82,414 sq km), 350 mi (563 km) long and 160 mi (257 km) at its greatest width, bordered on the W by NE Minnesota, on the N and E by ...

Jenner, Edward

(Encyclopedia)Jenner, Edward, 1749–1823, English physician; pupil of John Hunter. His invaluable experiments beginning in 1796 with the vaccination of eight-year-old James Phipps proved that cowpox provided immun...

Barbier, Antoine Alexandre

(Encyclopedia)Barbier, Antoine Alexandre äNtwänˈ älĕksäNˈdrə bärbyāˈ [key], 1765–1825, French bibliographer and government librarian. Barbier was one of a committee appointed to collect works suppresse...

Nordenskjöld, Nils Adolf Erik, Baron

(Encyclopedia)Nordenskjöld, Nils Adolf Erik, Baron nĭls äˈdôlf āˈrĭk no͞orˈdənshöld [key], 1832–1901, Swedish geologist and arctic explorer, first to navigate the Northeast Passage, b. Finland. He ser...

Jágr, Jaromír

(Encyclopedia)Jágr, Jaromír, 1972–, Czech ice hockey player, b. Kladno. Jágr played professional hockey in Czechoslovakia as a teenager, and joined the Pittsburgh Penguins of the National Hockey League in 1990...